Permanent magnet motor frequency converter with liquid cooling structure

Abstract

The utility model discloses a permanent magnet motor frequency converter with a liquid cooling structure, which relates to the technical field of liquid cooling of permanent magnet frequency converters, and is characterized in that an inner frame is arranged in a drawer type mounting frame, and a relay storage tank and a circulating pump are mounted at the inner end of the inner frame and are connected through a connecting pipeline; the two connecting pipelines are connected with the permanent magnet frequency conversion assembly through the connectors, and liquid cooling of the permanent magnet frequency conversion assembly is achieved. Mounting hole sites are formed in the corners of the outer ends of the drawer type mounting racks, bolts are inserted into the mounting hole sites to fix the drawer type mounting racks on the box body, and quick disassembly and assembly are achieved by canceling connection between the connectors and the drawer type mounting racks; the liquid cooling system drives cooling liquid to circulate around the permanent magnet frequency conversion assembly through the circulating pump, the temperature is effectively reduced, the heat dissipation efficiency is improved, and the liquid cooling system is particularly important for a high-power permanent magnet frequency converter. The drawer type mounting frame design simplifies maintenance and upgrading, saves time and labor cost, optimizes the internal structure and makes the system more compact. And the external storage tank expands the storage capacity.

Description

TECHNICAL FIELD

[0001] The utility model relates to permanent magnet frequency converter liquid cooling technical field, concretely is a kind of permanent magnet motor frequency converter with liquid cooling structure. BACKGROUND

[0002] Permanent magnet frequency converter is a kind of electronic control equipment specially used to drive permanent magnet synchronous motor. It realizes motor variable speed operation and efficient control by accurately adjusting the input voltage and frequency of motor.

[0003] Permanent magnet frequency converter in practical application, liquid cooling equipment is directly set on the box body often, and heat exchange is carried out by pipeline into the box body. This design although meets the heat dissipation demand to some extent, but in the equipment maintenance and replacement link, significant drawbacks are exposed.

[0004] Firstly, the close combination of liquid cooling equipment and box body limits the maintenance space, so that technicians face many inconveniences when maintaining or replacing components. They need to remove or move liquid cooling equipment and its related pipeline first to access the internal components of frequency converter, and this process is not only complicated, but also easily causes misoperation or damages other components.

[0005] Secondly, this design increases the time and effort of maintenance. Since the weight and volume of liquid cooling equipment are large, its disassembly and installation process needs multiple people to cooperate, and the operation is difficult and time-consuming. In addition, frequent disassembly and installation may accelerate the wear and tear of pipeline interface, further increasing the risk of equipment failure.

[0006] Finally, from the perspective of maintenance cost, the close combination of liquid cooling equipment and box body also increases the difficulty and cost of maintenance. Once there are components inside the frequency converter that need to be repaired, the liquid cooling equipment and its related components often need to be disassembled or replaced as a whole, which undoubtedly increases the cost and time cost of maintenance. INVENTION CONTENTS

[0007] The utility model aims to provide a kind of permanent magnet motor frequency converter with liquid cooling structure to solve the problems raised in the above background technology.

[0008] The purpose of the utility model can be realized by the following technical solutions:

[0009] A kind of permanent magnet motor frequency converter with liquid cooling structure, including box body, permanent magnet frequency conversion component, mute fan, the permanent magnet frequency conversion component is installed in box body, and mute fan is installed on the upper part of inside, and the heat dissipation inside box is accelerated by mute fan;

[0010] The lower part of the side of the box body is provided with a drawer type mounting rack, and the inside of the drawer type mounting rack is provided with an inner rack, and the inner end of the inner rack is provided with a relay storage tank and a circulating pump.

[0011] The outer corner of the drawer type mounting rack is provided with a mounting hole, and the drawer type mounting rack is fixed on the box body through the insertion of the mounting hole and a bolt, and the connection between the connecting head and the drawer type mounting rack is cancelled to realize quick disassembly and assembly.

[0012] The outer end of the drawer type mounting rack is provided with an embedding groove, and the embedding groove is provided with an externally-hung storage tank.

[0013] The cross section of the clamp is designed in the shape of omega, and the inner wall of the clamp is provided with an anti-skid rubber strip.

[0014] The connecting pipeline between the circulating pump and the relay storage tank is provided with an instrument and a valve.

[0015] The connecting head is connected with the hard pipe port of the connecting pipeline through threads, and the connecting head is inserted into the permanent magnet variable frequency assembly through threads.

[0016] The inner rack is fixed on the drawer type mounting rack through bolts, and the inner rack and the drawer type mounting rack are provided with a water-absorbing sponge.

[0017] Compared with the prior art, the box body has the advantages that:

[0018] Through the liquid cooling system, especially the circulating pump driven cooling liquid circulating around the permanent magnet variable frequency assembly, the component temperature is effectively reduced, and the heat dissipation efficiency is significantly improved.

[0019] The drawer type mounting rack is designed to enable the core components of the liquid cooling system to be quickly extracted or inserted as a whole, greatly simplifying the maintenance and upgrading process. When cleaning, maintenance or replacement of components is required, it can be completed simply and greatly saves time and labor costs. The drawer type mounting rack not only provides stable support, but also makes the entire liquid cooling system more compact and reasonable through the optimized design of its internal structure. At the same time, the introduction of the externally mounted storage tank further expands the storage capacity of the cooling liquid, making the overall performance of the device more superior.

[0020] By adopting precise connectors, sealing rings and water-absorbing sponges and other measures, the tightness and sealing of the liquid cooling system are ensured, effectively preventing safety hazards such as liquid leakage. At the same time, the flow and pressure of the cooling liquid are monitored in real time to ensure stable operation of the system. The humanized design of the overall design, such as quick disassembly and assembly and easy cooling liquid replenishment, greatly improves the user experience. Users can easily complete the maintenance and upgrading of the liquid cooling system without complex operations, improving the usability and user satisfaction of the device. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to facilitate those skilled in the art to understand, the utility model will be further described below in conjunction with the drawings.

[0022] Figure 1 is the overall structure of the utility model show diagram;

[0023] Figure 2 is the overall structure of the utility model front view;

[0024] Figure 3 is the drawer type mounting rack, circulating pump and relay storage tank of the utility model show diagram;

[0025] Figure 4 is the drawer type mounting rack and externally mounted storage tank of the utility model show diagram.

[0026] In the drawing: 1, box body; 2, permanent magnet variable frequency assembly; 3, silent fan; 4, drawer type mounting rack; 5, mounting hole; 6, inner rack; 7, relay storage tank; 8, circulating pump; 9, connecting pipeline; 10, connector; 11, embedded groove; 12, externally mounted storage tank; 13, clamp. DETAILED DESCRIPTION

[0027] The technical solutions of the utility model will be described clearly and completely below in conjunction with embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] In the modern industrial field, the application of permanent magnet frequency converter is increasingly widespread, its high efficiency, energy saving characteristics make it become the champion in many devices. However, with the continuous improvement of power, the heat dissipation problem of permanent magnet frequency converter is increasingly prominent. In order to effectively solve this problem, we design and develop a kind of permanent magnet frequency converter with innovative liquid cooling structure. The following is a detailed exposition of the design, aims to show its superior performance and unique design through rich details, examples, references and statistical data. Embodiment

[0029] Please refer to Figure 1 - Figure 4 As shown in the figure, the design ingeniously integrates the box 1, permanent magnet frequency conversion assembly 2 and silent fan 3 three elements. Permanent magnet frequency conversion assembly 2 as the core component, is carefully placed in the inside of box 1, to ensure the stability and safety of the running environment. In order to further improve the heat dissipation efficiency, the silent fan 3 is ingeniously installed on the inside of the upper part of box 1, using the principle of air convection, to accelerate the discharge of heat inside the box 1, to create a cool working environment for permanent magnet frequency conversion assembly 2.

[0030] Innovatively introduced the drawer type mounting rack 4, this design not only facilitates maintenance and upgrade, but also plays a key role in the liquid cooling system. The drawer type mounting rack 4 is installed on one side of the lower part, and its inside is provided with carefully designed inner shelf 6, which provides stable support for the core components of the liquid cooling system, namely the relay storage tank 7 and the circulating pump 8. The relay storage tank 7 is responsible for storing the cooling liquid, while the circulating pump 8 drives the cooling liquid to circulate in the system, connected with permanent magnet frequency conversion assembly 2 through connecting pipe 9, to realize efficient liquid cooling.

[0031] In order to ensure the tightness and sealing of the connection, the connecting pipe 9 and the permanent magnet frequency conversion assembly 2 are connected by using precise connector 10, and special sealing ring is provided to prevent liquid leakage. In addition, the connecting pipe 9 is also equipped with instruments and valves, which can facilitate real-time monitoring of the flow and pressure of the cooling liquid, to ensure the stable operation of the liquid cooling system.

[0032] In terms of quick disassembly and assembly, we also put in enough effort. Through simple operation, the connection between connector 10 and drawer type mounting rack 4 can be cancelled, realizing the quick disassembly and replacement of liquid cooling system, greatly improving the maintenance efficiency and convenience. At the same time, water-absorbing sponge is specially added between inner shelf 6 and drawer type mounting rack 4, to absorb the possible trace of liquid leakage, to ensure the absolute safety of the equipment operation. Embodiment

[0033] In Embodiment Two, we have made further innovative improvements while retaining the structural advantages mentioned above. Specifically, we have ingeniously installed an external storage tank 12 in the embedding slot 11 at the outer end of the drawer-type mounting rack 4. This design not only expands the storage capacity of the cooling liquid but also makes the overall structure of the device more compact and reasonable.

[0034] To ensure the stability of the external storage tank 12, we have specially designed a "Ω" shaped clamp 13 for fixation. The inner wall of the clamp 13 is provided with a non-slip rubber strip to increase friction and prevent slipping; and its two ends are tightly fixed on the drawer-type mounting rack 4 through bolts and non-slip washers, ensuring the firmness and reliability of the connection.

[0035] In addition, the pipeline of the external storage tank 12 passes through the inner rack 6 and is connected to the relay storage tank 7, and a valve is provided on the pipeline to facilitate the control of liquid replenishment. This design not only simplifies the structural layout of the liquid cooling system but also makes the replenishment and replacement of cooling liquid more convenient and efficient.

[0036] In summary, the permanent magnet frequency converter with liquid cooling structure designed by us performs well in terms of heat dissipation efficiency, maintenance convenience, and structural compactness. Through the introduction of innovative design elements such as the drawer-type mounting rack 4 and the external storage tank 12, we have successfully solved the problem of heat dissipation faced by traditional permanent magnet frequency converters. In the future, we will continue to deepen research and optimize design, constantly promoting the innovation and development of permanent magnet frequency converter technology, and contributing more power to the green and efficient development of the industrial field.

[0037] The use process is as follows: First, confirm that the box 1, permanent magnet frequency component 2, silent fan 3, drawer-type mounting rack 4 and its internal components (including relay storage tank 7, circulating pump 8, connecting pipeline 9, inner rack 6) and all other parts are installed in place without looseness or damage. Check the liquid level of the cooling liquid through the replenishment pipeline of the external storage tank 12 to ensure that it is within the specified range. At the same time, check the instruments and valves on the connecting pipeline 9 to confirm that they are in normal working condition.

[0038] Press the start button, the permanent magnet frequency component 2 starts to work. The silent fan 3 starts at the same time, using the principle of air convection to help reduce the temperature inside the box 1. The circulating pump 8 drives the cooling liquid to circulate in the liquid cooling system, and enters the permanent magnet frequency component 2 through the connecting pipeline 9 for heat dissipation. During the operation of the device, the flow and pressure of the cooling liquid are monitored through the instruments on the connecting pipeline 9 to ensure that they are within the normal range. If abnormalities are found, timely adjustment or notification of professional personnel for maintenance is required.

[0039] When maintenance or upgrade of the liquid cooling system is required, first, the power supply of the equipment is turned off, and the connection head 10 is disconnected from the drawer mounting frame 4. Then, the entire drawer mounting frame 4 and its internal components (including the relay storage tank 7, the circulating pump 8, etc.) can be pulled out from the box 1 for cleaning, repair or replacement. After completion, the reverse steps can be followed for reinstallation.

[0040] If the storage capacity of the cooling liquid needs to be increased, the external storage tank 12 can be used for supplement. By opening the valve, the cooling liquid in the external storage tank 12 is supplemented to the relay storage tank 7 through the pipeline. After the supplement is completed, the valve is closed and the liquid level is checked.

[0041] During the entire use process, the safety operation specification of the equipment must be paid attention to, so as to avoid safety accidents such as liquid leakage or electric shock. At the same time, the dryness of the water absorption sponge is checked regularly to ensure that it can effectively absorb the possible trace liquid leakage.

[0042] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the technicians in the technical field can well understand and use the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A permanent magnet motor frequency converter with liquid cooling structure, comprising a box (1), a permanent magnet frequency conversion assembly (2), a silent fan (3), the permanent magnet frequency conversion assembly (2) is installed in the box (1), and the silent fan (3) is installed on the upper part of the inner side of the box (1), and the heat dissipation inside the box (1) is accelerated through the silent fan (3); characterized in that, The lower part of one side of the box (1) is provided with a drawer type mounting rack (4), and the inside of the drawer type mounting rack (4) is provided with an inner rack (6), the inner end of the inner rack (6) is provided with a relay storage tank (7) and a circulating pump (8), the relay storage tank (7) and the circulating pump (8) are connected through a connecting pipeline (9), two connecting pipelines (9) are connected with a permanent magnet variable frequency assembly (2) through a connecting head (10), and the liquid cooling of the permanent magnet variable frequency assembly (2) is realized. The outer corner of the drawer type mounting rack (4) is provided with a mounting hole (5), and the mounting hole (5) is inserted into a bolt to fix the drawer type mounting rack (4) on the box (1), the connection between the connecting head (10) and the drawer type mounting rack (4) is cancelled, and quick disassembly and assembly are realized.

2. The permanent magnet motor frequency converter with liquid cooling structure according to claim 1, characterized in that, The outer end of the drawer type mounting rack (4) is provided with an embedded groove (11), and the embedded groove (11) is provided with an external hanging type storage tank (12) in the groove, and the outer end of the drawer type mounting rack (4) is connected with a clamp (13), and the external hanging type storage tank (12) is fixed on the drawer type mounting rack (4) through the clamp (13).

3. The permanent magnet motor frequency converter with liquid cooling structure according to claim 2, characterized in that, The cross section of the clamp (13) is designed as "Ω" shape, and the inner wall of the clamp (13) is provided with an anti-skid rubber strip, the two ends of the clamp (13) are fixed on the drawer type mounting rack (4) through bolts and anti-skid gaskets, the pipeline of the external hanging type storage tank (12) passes through the inner rack (6) and communicates with the relay storage tank (7), and the pipelines of the external hanging type storage tank (12) and the relay storage tank (7) are provided with valves for controlling the supplement of the liquid in the relay storage tank (7).

4. The liquid-cooled permanent magnet motor frequency converter of claim 1 or 3, wherein, The circulating pump (8) is fixed on the inner rack (6) through bolts, the relay storage tank (7) is installed on the inner rack (6) through a support, bolts and nuts, and the connecting pipeline (9) between the circulating pump (8) and the relay storage tank (7) is provided with an instrument and a valve.

5. The permanent magnet motor frequency converter with liquid cooling structure according to claim 4, characterized in that, The connecting head (10) is connected with the hard pipe port of the connecting pipeline (9) through threads, the connecting head (10) is inserted into the permanent magnet variable frequency assembly (2) and connected through threads, and the connecting head (10) is provided with a sealing ring at the connecting part.

6. The permanent magnet motor frequency converter with liquid cooling structure according to claim 5, characterized in that, The inner rack (6) is fixed on the drawer type mounting rack (4) through bolts, and a water absorbing sponge is arranged between the inner rack (6) and the drawer type mounting rack (4).

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